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satela [25.4K]
3 years ago
13

2. IQ tests are usually designed so that the scores are normally distributed with mean 100 and standard

Mathematics
1 answer:
gizmo_the_mogwai [7]3 years ago
5 0
Ineedpoints inners pinotsinnned points songsdh
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What is the equation?
Nana76 [90]

Answer:

y=-2+4

Step-by-step explanation:

we know the y intercept is four, so we can plug that into y=mx+b

so far we know y=mx+4

and the equation for finding slope is \frac{y_{2} -y_{1} }{x_{2} -x_{1} }

so let's find two points on the graph

let's make it easy on ourselves and use the points laid out for us

(0,4) and (2,0)

\frac{0-4}{2-0}

solving that would come out to be \frac{-4}{2}

simplified, that would be -2

now that we know the slope, we can put them into slope-intercept form

y=-2+4

8 0
3 years ago
JK= 4x+3,<br> JL= 47, <br> KL= 9x+5<br> Find KL
Anuta_ua [19.1K]

Answer:

<h2>x = 3</h2><h2></h2>

Step-by-step explanation:

JK + KL = JL

(4x + 3) + (9x + 5) = 47

4x + 9x = 47 - 3 - 5

13x = 39

x = 39 / 13

x = 3

4 0
3 years ago
type the slope intercept equation of the line that passes through the point (1,1)&amp;(7,4) enter fraction in simplest form
9966 [12]
\bf \begin{array}{lllll}&#10;&x_1&y_1&x_2&y_2\\&#10;%   (a,b)&#10;&({{ 1}}\quad ,&{{ 1}})\quad &#10;%   (c,d)&#10;&({{ 7}}\quad ,&{{ 4}})&#10;\end{array}&#10;\\\\\\&#10;% slope  = m&#10;slope = {{ m}}= \cfrac{rise}{run} \implies &#10;\cfrac{{{ y_2}}-{{ y_1}}}{{{ x_2}}-{{ x_1}}}\implies \cfrac{4-1}{7-1}\implies \cfrac{3}{6}\implies \cfrac{1}{2}

\bf y-{{ y_1}}={{ m}}(x-{{ x_1}})\implies y-1=\cfrac{1}{2}(x-1)\\&#10;\left. \qquad   \right. \uparrow\\&#10;\textit{point-slope form}&#10;\\\\\\&#10;y-1=\cfrac{1}{2}x-\cfrac{1}{2}\implies y=\cfrac{1}{2}x-\cfrac{1}{2}+1\implies y=\cfrac{1}{2}x+\cfrac{1}{2}
5 0
3 years ago
Which ratio forms a proportion with 7/14
Evgesh-ka [11]

Answer: 3/6

Step-by-step explanation:

Anytime you want to figure out the ratio, you divide the denominator (bottom number) by the numerator (top number).

First divide 14 by 7 and you get 1/2 (or 0.5 if you used the calculator). Now do this for each of the others until one matches or has the same ratio.

a) 5/12 : 12 ÷ 5= 2.4 * Not a match

b) 2/5: 5 ÷ 2= 2.5 * Not a match

c) 4/9: 9 ÷ 4= 2.25 * Not a match

d) 3/6: 6 ÷ 3 = 0.5 This is a MATCH!!!

8 0
3 years ago
Anthony leans a 28-foot ladder against a wall so that it forms an angle of 76^{\circ} ∘ with the ground. What’s the horizontal d
BabaBlast [244]

Answer:

Step-by-step explanation:

Cos \ 76 =\dfrac{adjacent \ side}{hypotenuse}\\\\0.2419=\dfrac{x}{28}\\\\\\0.2419*28=x\\\\\\x=6.7732

x =6.8 ft

5 0
2 years ago
Read 2 more answers
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